law add_mod_left
import bend-mathlib@0.8.1.0/nat.bend as Natimport Base
2043# Adding the divisor does not change the remainder: (b + a) % b = a % b.
2044law add_mod_left:
2045 for a: Nat
2046 for b: Nat
2047 {Nat.mod(Nat.add(b, a), b) == Nat.mod(a, b) : Nat}